<!--登录组件-->
<template>
<!--登录区域-->
    <div class="login-content">
    <!--登录盒子-->
        <div class="login_box">
           <!--头像-->
           <div class="avater_box">
               <img src="../assets/logo.png" alt="">
           </div>
           <!--登录表单区域-->
           <el-form ref="loginForm" :model="loginform" :rules="formRules" label-width="0px" class="login_form">
               <el-form-item prop='username'>
                   <el-input prefix-icon="iconfont icon-user" v-model="loginform.username"></el-input>
               </el-form-item>
               <el-form-item prop=password>
                   <el-input prefix-icon="iconfont icon-3702mima" v-model="loginform.password" type="password"></el-input>
               </el-form-item>
               <el-form-item class="login_button">
                   <el-button type="primary" @click="login">登录</el-button>
                   <el-button type="info" @click='restForm'>重置</el-button>
               </el-form-item>
            </el-form>
        </div>
    </div>
</template>
<script>
    export default{
        data(){
            return {
                //登录表单绑定的数据对象
                loginform:{
                    username:'',
                    password:''
                },
                //表单验证规则
                formRules:{
                    username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '用户名长度在 3 到 10 个字符', trigger: 'blur' }
                    ],
                    password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 3, max: 10, message: '密码长度在 3 到 10 之间', trigger: 'blur' }
                    ] 
                }
            }
        },
        methods: {
            // 点击重置按钮，重置表单数据
            restForm(){
                this.$refs.loginForm.resetFields()
            },
            login(){
                this.$refs.loginForm.validate(async valid=>{
                    // 如果验证错误，返回
                    // if(!valid) return
                    // 发送请求
                const {data:res}=await this.$http.post('login',this.loginform)
                // const {data:res}=await this.$http.post('login',this.loginform)
                if(res.meta.status!==200) return this.$message.error(res.meta.msg);
                    // 成功
                    this.$message({
                        message: res.meta.msg,
                        type: 'success'
                    });
                    // 登录成功，保存token到客户端 sessionStorage
                    window.sessionStorage.setItem('token',res.data.token)
                    this.$router.push('/home')
                    // 通过编程时导航跳转到主页面
                    // const re=await this.$http.post(`http://127.0.0.1:8888/api/login`,this.loginform)
                    // console.log(re);

                })
            }
        }
    }
</script>
<style>
    .login-content{
        height: 100%;
        background-color: #2b5b6b;
    }
    .login_box{
        width: 450px;
        height: 300px;
        background-color: #fff;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%,-50%);
        border-radius: 3px;
    }
    .avater_box{
        height: 100px;
        width: 100px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        position: absolute;
        left: 50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
        box-shadow: 0 0 10px #ddd;
    }
    img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
    }
    .login_form{
        position: absolute;
        bottom: 0;
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
    .login_button{
    /*弹性盒模型*/
    display: flex;
    justify-content: flex-end;
    }
</style>